Well the motor is a stock short block, stock cam, stock heads (1.84/1.54 valves and valve job), and the usual intake bolt ons...
I would think a stock motor would sound exactly like this one, seeing as its more or less stock with a little head work on it.
fiveo, The shorties on your car probably make it louder down low than mine. I noticed that with the long tubes, the idle-2500 is quieter, but over 3000 the car just starts to scream. The LTs made more power on my car than shorties so I will be keeping them, but it will be somewhat quiter lower in the RPMs.
Mob, yeah I would think the Bulletts would sound similar. I debated them, but decided I wanted something different. I can always remove the mufflers and buy anything I want (its all bolted in not welded) to test some set ups. But Ill cruise with these for a while and see how much I like them!